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Báo cáo hóa học: " Research Article Bit Error Rate Approximation of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Bit Error Rate Approximation of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 176083 14 pages doi 10.1155 2010 176083 Research Article Bit Error Rate Approximation of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors Zhongshan Zhang 1 Lu Zhang 2 Mingli You 2 and Ming Lei1 department of Wireless Communications NEC Laboratories China NLC 11th Floor Building A Innovation Plaza TusPark Beijing 100084 China 2Research Innovation Center R I Alcatel-Lucent Shanghai Bell No. 388 Ningqiao Road Pudong Shanghai 201206 China Correspondence should be addressed to Zhongshan Zhang zhang_zhongshan@nec.cn Received 23 February 2010 Revised 10 August 2010 Accepted 16 September 2010 Academic Editor Stefan Kaiser Copyright 2010 Zhongshan Zhang et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. The bit error rate BER of multiple-input multiple-output MIMO orthogonal frequency-division multiplexing OFDM systems with carrier frequency offset and channel estimation errors is analyzed in this paper. Intercarrier interference ICI and interantenna interference IAI due to the residual frequency offsets are analyzed and the average signal-to-interference-and-noise ratio SINR is derived. The BER of equal gain combining EGC and maximal ratio combining MRC with MIMO-OFDM is also derived. The simulation results demonstrate the accuracy of the theoretical analysis. 1. Introduction Spatial multiplexing multiple-input multiple-output MI-MO technology significantly increases the wireless system capacity 1-4 . These systems are primarily designed for flat-fading MIMO channels. A broader band can be used to support a higher data rate but a frequency-selective fading MIMO channel is met and this channel experiences intersymbol interference ISI . A popular solution is .